Pollen

Down here in Burlington we're getting a yellow white pollen. Probably Japanese Knotweed. Not much orange tho.

I'm seeing the same. We've been looking, and the only thing out there, with orange pollen, seems to be some late blooming goldenrod. Late blooming, because it was compromised during the growing season...mowed, crushed, etc. All I can say is go for a hike or drive the roads in your area. Look in the ditches, along streams, and at edges of fields where farmers mowed.